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ASU Bio 181 exam 3|73 QUESTIONS AND ANSWERS 2024/2025 UPDATED, Exams of Biology

University of WinchesterBiology

ASU Bio 181 exam 3|73 QUESTIONS AND ANSWERS 2024/2025 UPDATEDASU Bio 181 exam 3|73 QUESTIONS AND ANSWERS 2024/2025 UPDATEDASU Bio 181 exam 3|73 QUESTIONS AND ANSWERS 2024/2025 UPDATED

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2023/2024

Available from 04/12/2024

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ASU Bio 181 exam 3|73 QUESTIONS AND
ANSWERS 2024/2025 UPDATED
ASU Bio 181 exam 3|73 QUESTIONS AND
ANSWERS 2024/2025 UPDATED> .
The autonomic nervous system contains the sympathetic and trie parasympathetic
nervous system. - CORRECT ANSWERTrue
Potassium ions are at high concentrations inside of cells including in neurons. -
CORRECT ANSWERTrue
The post-synaptic cell can be: - CORRECT ANSWERIn glands, muscle cells, neurons
The axon hillock in the pre-synaptic neuron fires based on temporal and spatial
summation of inputs. - CORRECT ANSWERTrue
Only pre-synaptic neurons are coated with myelin. - CORRECT ANSWERFalse
The axon from a pre-synaptic cell contacts the axon of another neuron. - CORRECT
ANSWERFalse
Acetylcholine esterase breaks acetylcholine into muscarinic acid - CORRECT
ANSWERFalse
Excitatory synapses cause depolarization of the post-synaptic cell. - CORRECT
ANSWERTrue
The action potential is: - CORRECT ANSWERA result of the movement of ions
Fast neurons as described in lecture are fast because they are surrounded by a type of
glial cell that results in a myelin coating - CORRECT ANSWERFalse
The central nervous svstem (CNS) contains: - CORRECT ANSWERnone of the
answers are correct
The neural tissues are:
a. Spinal cord, sensory neurons, and cell body
b. Spinal cord, sensory neurons, and brain
c. Brain, and sensory neurons
d. Pituitary and hypothalamus
e. None of the above - CORRECT ANSWERSpinal cord, sensory neurons, and brain
In the motor end plate, the event that is the immediate trigger for exocytosis is: -
CORRECT ANSWERCalcium Ions
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ANSWERS 2024/2025 UPDATED

ASU Bio 181 exam 3|73 QUESTIONS AND

ANSWERS 2024/2025 UPDATED>.

The autonomic nervous system contains the sympathetic and trie parasympathetic nervous system. - CORRECT ANSWER True Potassium ions are at high concentrations inside of cells including in neurons. - CORRECT ANSWER True The post-synaptic cell can be: - CORRECT ANSWER In glands, muscle cells, neurons The axon hillock in the pre-synaptic neuron fires based on temporal and spatial summation of inputs. - CORRECT ANSWER True Only pre-synaptic neurons are coated with myelin. - CORRECT ANSWER False The axon from a pre-synaptic cell contacts the axon of another neuron. - CORRECT ANSWER False Acetylcholine esterase breaks acetylcholine into muscarinic acid - CORRECT ANSWER False Excitatory synapses cause depolarization of the post-synaptic cell. - CORRECT ANSWER True The action potential is: - CORRECT ANSWER A result of the movement of ions Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating - CORRECT ANSWER False The central nervous svstem (CNS) contains: - CORRECT ANSWER none of the answers are correct The neural tissues are: a. Spinal cord, sensory neurons, and cell body b. Spinal cord, sensory neurons, and brain c. Brain, and sensory neurons d. Pituitary and hypothalamus e. None of the above - CORRECT ANSWER Spinal cord, sensory neurons, and brain In the motor end plate, the event that is the immediate trigger for exocytosis is: - CORRECT ANSWER Calcium Ions

ANSWERS 2024/2025 UPDATED

The membrane potential (resting potential) is largely set by the Na-K-ATPase pump. - CORRECT ANSWER true The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal. - CORRECT ANSWER false Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action potential in the postsynaptic cell. - CORRECT ANSWER true Fast neurons as described in lecture require cytoplasmic signal transduction to open an ion channel. - CORRECT ANSWER False Excitatory synapses cause hyperpolarization of post-synaptic cells. - CORRECT ANSWER false Excitatory synapses make the post-synaptic cell less likely to fire. - CORRECT ANSWER false The receptors in post-synaptic cells are the basis on which the synapse can be defined as inhibitory or excitatory. - CORRECT ANSWER false When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - CORRECT ANSWER true Receptors are made from membrane bound polyribosomes. - CORRECT ANSWER true terminal web - CORRECT ANSWER is a site of exocytosis The resting potential of neurons Is: - CORRECT ANSWER The answer is not on this list Voltage-gated ion channels open when a protein binds to the receptor. - CORRECT ANSWER False Insulin is a ligand. - CORRECT ANSWER True When the Sympathetic nervous system is triggered glycogen is broken down to glucose to provide more energy. - CORRECT ANSWER True The medulla of the adrenal gland produces epinephrine (i.e., adrenaline). - CORRECT ANSWER True Vitamin D is synthesized from cholesterol - CORRECT ANSWER True

ANSWERS 2024/2025 UPDATED

When the ventricles contract blood is pushed out into the artery and the artery stretches because of its elastic layers allowing the blood to continue to flow into the circulatory system while the ventricle is relaxing. - CORRECT ANSWER True The slow flow of blood in the capillaries facilitates the production of bicarbonates in the blood. - CORRECT ANSWER True The partial pressure of oxygen in the lungs causes it to load into the circulatory system.

  • CORRECT ANSWER True The inspiratory and the expiratory reserves make up the total volume in the lungs. - CORRECT ANSWER False The oxygen in the circulatory system functions to bring oxygen to every cell of the body so it can make ATP. - CORRECT ANSWER True When the diaphragm is relaxed, it allows air to leave the lungs including the residual volume. - CORRECT ANSWER False Tidal breathing causes the incoming air to mix with some older air in the lungs. - CORRECT ANSWER True Oxygen is distributed throughout the body by: The immune system. The circulatory system. The endocrine system. The digestive system. The excretory system. - CORRECT ANSWER The circulatory system. The excretory system uses oxygen because oxygen diffuses more rapidly into the excretory system because it contains water in tie urine - CORRECT ANSWER False The pulmonary artery contains oxygenated blood - CORRECT ANSWER False Blood moves very rapidly in the capillaries. - CORRECT ANSWER False The slow flow of blood in the capillaries facilitates release of oxygen. - CORRECT ANSWER True The Bowman's capsule, the proximal convoluted tubule, and the distal convoluted tubule are in the cortex of the kidney. - CORRECT ANSWER True The kidney filters about 180 liters of blood per day - CORRECT ANSWER True

ANSWERS 2024/2025 UPDATED

The kidney gets rid of toxic compounds. - CORRECT ANSWER True The functional unit of the kidney is the nephron - CORRECT ANSWER True Blood pressure is the force that drives molecules out of the glomerulus into the Bowman's capsule. - CORRECT ANSWER True Blood pressure drives red blood cells and plasma proteins out of the glomerulus. - CORRECT ANSWER false In the proximal convoluted tubule useful molecules are collected and brought back into the circulatory system such as glucose and amino acids, but not the toxic materials. - CORRECT ANSWER True Toxins including urea (in mammals) is driven out of the glomerulus into the Bowman's capsule. - CORRECT ANSWER True Efferent arterioles enter the Bowman's capsule and afferent arterioles leave the Bowman's capsule. - CORRECT ANSWER False The Bowman's capsule is the beginning of the nephron. - CORRECT ANSWER True Urine leaves our body through the urethra. - CORRECT ANSWER True The kidney controls the water balance in the body. - CORRECT ANSWER True The medulla of the kidney secretes epinephrine. - CORRECT ANSWER False The inter-weaving of the circulatory system with the nephron is essential for the concentration of urea in the urine. - CORRECT ANSWER True Each kidney contains about one million nephrons. - CORRECT ANSWER True